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              | 年度 | 第1号保険者数 | 要介護(支援)認定者数 | 自立度(%) | 対前年変動率(%) | 対2008年変動率(%) |  
              |  | 合計 | 65~75 | 75~ | 合計 | 65~75 | 75~ | 合計 | 65~75 | 75~ | 合計 | 65~75 | 75~ | 合計 | 65~75 | 75~ |  
              | 2008 | 2,820 | 1,239 | 1,581 | 455 | 47 | 408 | 83.87 | 96.21 | 74.19 |  |  |  |  |  |  |  
              | 2009 | 2,812 | 1,207 | 1,605 | 460 | 44 | 416 | 83.64 | 96.35 | 74.08 | -0.22 | 0.15 | -0.11 |  |  |  |  
              | 2010 | 2,801 | 1,159 | 1,642 | 511 | 54 | 457 | 81.76 | 95.34 | 72.17 | -1.89 | -1.01 | -1.91 |  |  |  |  
              | 2011 | 2,802 | 1,167 | 1,635 | 527 | 54 | 473 | 81.19 | 95.37 | 71.07 | -0.56 | 0.03 | -1.10 |  |  |  |  
              | 2012 | 2,858 | 1,213 | 1,645 | 564 | 45 | 519 | 80.27 | 96.29 | 68.45 | -0.93 | 0.92 | -2.62 | -3.60 | -0.08 | -5.74 |  |